Apparatus for fumigating dental cavities.



H. GRASSET. APPARATUS FOR FUMIGATING DENTAL CAVITIES.

APPLICATION FILED MAY 21, 1914.

Patented Nov. 3, 1914.

W/T/VESSES Y Qn ya THE MORRIS PETERS CO PHOTO-LITHD.. wAsHlNGmN, D. 1

HENRI GRASSET, OF PARIS, FRANCE.

APPARATUS FOR FUMIGATING DENTAL CAVITIES.

Specification 01"' Letters Patent.

Patented Nov. 3, 1914.

Application led May 21, 1914. Serial No. 840,002.

To ZZ whom t may concern Be it known that I, HENRI GRASSET, the above-named petitioner', a citizen of the Republic of France, and resident of Paris', France, have invented a new and useful ripparatus for Fumigating Dental Cavities, which is fully set forth in the following specication.

This invention relates to apparatus for fumigating dental cavities by treating the same with vapors of iodin or other drugs.

Such apparatus, as ordinarily constructed, includes a metal body portion made of two or more sections detachably connected together and adapted to contain the medicinal substance, the latter being vaporized by contact with a heated gaseous medium that is blown through the said body. In practice, however, apparatus constructed as just described has proved objectionable, since the iodin vapors, in passing therethrough, have a corroding action upon the metal, which soon renders the apparatus useless.

It is the object of my invention, therefore, to overcome this defect by utilizing within the body of the apparatus an 1mproved container for the medicinal sub` stance which is made of non-corrodible material and is so constructed and arranged as to prevent the vapors from coming into contact with the walls of the said body, and filtering through the joints thereof, while, at the same time, interfering in no way with the access of the heated gaseous medium to its contents.

An embodiment of the invention is illust-rated in the accompanying drawing, wherein:

Figure l is a fragmental view of the improved apparatus, partly in elevation and partly in section. Fig. 2 is an elevation of the complete apparatus; and Fig. 3 is a fragmental sectional view showing modified means for heating the gaseous current.

In the apparatus in question, the iodin, iodoform or other drug to be vaporized, or the cotton wool or other absorbent .material impregnated with a solution of such drug, is deposited in a cup l, which is made of steatite or other non-corrodible material. This cup is disposed within the section 3 a. heated, gaseous medium, said of the body of the apparatus, and at its mouth is arranged a pad 2, likewise made et steatite, which pad is provided with a central conduit 6 that projects into said cup. The other section 4 of said body is then threaded upon the section 3, and the two sections are then screwed together, thus pressing the pad tightly against the cup, the heated air or other gas being admit-ted into said cup through an opening 5 in the bottom thereof, whence it passes through the conduit 6 and into the nozzle 9, carrying with it the vapors generated by the iodin or other drug. The arrangement is such, therefore, that the said vapors are completely prevented from attacking the walls and joints of the body of the apparatus, so that the rapid corrosion and consequent destruction thereof are in this way avoided.

In the construction illustrated, the body of the apparatus has a widened portion 7 which can be readily heated in the flame of a Bunsen burner; but the heating may, of course, be effected in various other ways, for instance, by passing an electric current through a resistance element l0, Fig. 3, located in a chamber ll provided in the apparatus in front of the cup. ln such4 case, the apparatus may be provided with a nipple l2, which is adapted for connection with a blower or other source of air or gas supply, (not shown). The air or gas may, also, be blown in either by means of a bulb S, as shown in the drawing', or in any other suitable manner. rihe nozzle 9 may have any form suitable for the treatment to be effected, the end of the said nozzle being introduced into the cavity under treatment, as will be understood.

Claim:

An apparatus for fumigating dental cavities comprising a body having an internal passage for the circulation therethrough of body being composed of alining, tubular sections having their presented ends coupled together; a cup of non-corrodible material fitted in said passage at the junction point of said sections and adapted to contain a medicinal substance vaporizable by the heated, gaseous medium, said cup having an opening to permit access of said medium to its cone specication in the presence of'two subscrib tents; a pad of non-corrodib1e material aring Witnesses. ranged at the mouth of said cup and provided with a conduit project-ing thereinto; 5 and a nozzle located at the outer end of one Witnesses:

section. EMILE LEDRET,

In testimony whereof have signed this CHAS. P. PRESSLY.

HENR GRASSET.

Copies of this patent may be obtained for five cents each, by addi'essing the Commissioner of Patents,

Washington, D. C. 

